Mantle geochemistry: the message from oceanic volcanism

@article{Hofmann1997MantleGT,
  title={Mantle geochemistry: the message from oceanic volcanism},
  author={A. Hofmann},
  journal={Nature},
  year={1997},
  volume={385},
  pages={219-229}
}
Basaltic volcanism 'samples' the Earth's mantle to great depths, because solid-state convection transports deep material into the (shallow) melting region. The isotopic and trace-element chemistry of these basalts shows that the mantle contains several isotopically and chemically distinct components, which reflect its global evolution. This evolution is characterized by upper-mantle depletion of many trace elements, possible replenishment from the deeper, less depleted mantle, and the recycling… Expand
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